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(No Model.) I v 2 Sheets-Sheet 1. A. 0. KITTREDGE & T. S. CRANE.

UURVED MOLDING MACHINE.

No. 414,056. Patented Oct. 29, 1889.

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(N5 Model.) 2 Sheets-Sheet 2. A. O. KITTRE-DGE & T. S. CRANE;

CURVE-D MOLDING MACHINE.

Patented Oct. 29, 1889.

UNITED STATES PATENT OFFICE.

ANSON O. K iTTREDGE, OF SLATE HILL, NE\V YORK, AND THOMAS S. CRANE, OFEAST ORANGE, NEXV JERSEY, ASSIGNORS TO THE VULCAN COMPANY, OFPENNSYLVANIA. 1

CURVED-MOLDING MACHINE.

SPECIFICATION forming part of Letters Patent No. 414,056, dated October29, 1889.

Application filed February 6, 1889. Serial No, 298,796. (No model.)

To all who/n it may concern: site direct-ions; partlyin means foradjusting Be it known that we, ANSON O. KITTREDGE, the die holders inrelation to the carriers; 50 of Slate Hill, Orange county, New York, andpartly in the combination, with movable and THOMAS S. CRANE, of EastOrange, Essex fixed crimping-dies and lateral bending-dies 5 county, NewJersey, citizens of the United connected together and adapted to bemoved States, have invented certain new and useful simultaneously, ofmeans for varying the Improvements in Curved-folding Machines, speed ofthe vibrating die when in operation, 5 5 (sheet metal.) fully describedand represented and, in some cases, of means for varying the in thefollowing specification and the accomstroke'of the vibrating die and foradjusting 1o panying drawings,forming a part of the same. it in relationto the fixed die, to increase or The object of this invention is tofurnish a diminish the pressure upon the sheet metal; means foradjusting forming-dies in suitable and in other details of constructionherein- 6: relations to a pressing-die to shape a strip of afterdescribed and claimed. sheet metal into a curved molding of any re- Inthe drawings the improvements are quired radius. Such moldings, beingalways shown applied to a machine built upon a fiat provided withlongitudinal beads or angles, bed and having the movable crimping-dierequire the operation of crimping-tools, while sustained above the bedby a goose neck, to the curvature of the molding necessitates theintroduce the sheet metal readily beneath it; simultaneous use ofbending-tools to curve but the form of the bed and the design of the 20the strip of metal during the crimping opermachine is wholly immaterialif the adj ustation. The formingdies for bending and ments be providedthat are claimed herein. crimping such a molding therefore consist inFigure 1 is a plan of the machine; Fig. 2, a a fixed and a movablecrimping-die, with a side elevation of the same, the carrier for thelateral or bending die arranged at each side movable die being shown insection at the of the fixed die, with its operative surface center lineand the bed being shown in sec sustained above the level of the fixeddie at tion on line a 00 in Fig. 1. Fig.3 is a front a suitable point toproduce the required curvelevation of the machine; Fig. 4, a plan ofature in the metal when crimped. the lower die-holders, with the bedadjacent Heretofore a patent, numbered 171,917,11as thereto; Fig. 5, atransverse section of the 0 been issued, on January l1,1876,for thecombed and its attachments on line 00a in Fig. i, bination of twobending-dies arranged at opwith the parts in section where hatched. Fig.posite sides of the crimping-dies and adjust- G is a longitudinalsection of the bed and the able vertically, so as to produce the desiredfixed die-holder on line 2 e in Fig. 8. Fig. 7 curvature in the sheetmetal when laid thereis a view of the foot of a lateral die-holder on;but no means has heretofore been deinverted, and Fig. 8 is a View of theunder vised for simultaneously adjusting such latside of the bed. eraldies in the various angles and positions I) is the bed,having the threelowerdies susnecessary to produce the oblique curvatures tained upon itsfront end, the lower crimpingfreqnently required in curvedcornice-molddie 7i being mounted in a holder which is o ings. fittedmovably within a vertical slot q in the The invention consists partly inthe combed and adjusted vertically therein by a screw bination, withsuch lateral dies, of carriers with shank g 0 therefor mounted uponpivots and connected 0 are bars pivoted in the bed parallel withtogether to move simultaneously, the carriers the die 7L2, at oppositesides of the same, the 45 in some cases being mounted each upon twopivots 0 being extended to the front of the pivots, so as to rocktransversely and longibed and provided with toothed segments 0' totudinally to the fixed die; partly in the means rotate them in oppositedirections.

for connecting such carriers to move in oppo m are the lateral diescarried in holders 1',

fitted. upon seats upon the top of carriers e, pivotedby bolts a uponthe bars c and provided with tail-pieces 0, which project below thebottom of the bed and fit within slots in a movable guide 0 The guide,as shown in Fig. 8, is formed upon a slide 0 which is held in ways 0 soas to be moved parallel with the bars cby a' removed, the position ofthe pin a in the' groove indicated, andthe bolt 6 shown in the groove.The holder in the right side 'of'such figure is shown. turned upon thepin a and clamped at a horizontal anglewith the die 71 It will benoticed that the rotation of one of th'eba'rs c is communicated by thesegments tot he other barin an inverse direction, so that the settin gofone of the diesmin any given vertical angle operates automatically toset the oppositedie at a similar opposed angle, and the clamping ofeither of the bars operates similarly to clamp the other bar'in itsopposite position through the medium of the segments c. A screw 20 isprovidedbeneath the segments and connected by a swivel upon its pointwith a shoev, which embraces the lower edges of the segments andoperates to support them both-simultaneously against the downwardpressure upon the lateral dies, and the I segments are shown providedwith slots adapted to receive bolts for clamping thesegments to the bedbwhen adjusted. The boltheads are shownin Fig. 4 but only holes(lettered r in Fig. 3) are shown where the slots are exhibited, as theheads of the bolts would.

obscure the slots if such heads were shown in Fig. 3. A set-screw maybeapplied to either or both of the bars in any other convenient manner.The guide 0 is provided with a shank 0 which moves in the ways 0,parallel with the die 7L2, and therefore operates to tip both thecarriers 6 simultaneously at the same angle'shown in Fig. 2.

The mounting of the holders 1' upon the seats on top of the carriers 6permits of their lateralladjustment to and from the fixed die 72 whilethe lateral dies are also capable of being set independently inanydesired horizontalangle by turning the'holders 1' upon the pin a 'inthe slot as shown at the right side of Fig. 4.

The dies are all shown in the drawings formed as flat plates clamped inthe holders set-screws, as in the holders h and 2', or by fapin throughthe die if, as in Figs. 3 and 5. By the use of a set-screw oranalogousdevice the dies may be held in different relations to theholders to bring their operative faces into the proper relation whentipped at various angles, as is indicated in Fig. 2.

The upper crimping-die h is carried in a vertically-vibrating holder h,formed upon the end ot ,a square shank n, which is adjustable by meansof a screw and screw-stem la. in a'reciprocating holder Z. The holder isfitted by means of a tongue Z to a dovetail in the top of a goose-neckcolumn s, the base of which is attached to the bed in the rear of thediesto permit the edge of the sheet metal to project below the lowerdie. A crank-shaft t is mounted upon the bed behind the columnor'goose-neck, and is provided with an adjustable crank-pin 11/, movablein a slotted crank in the ordinary manner by a screw to, and serving, bymeans of a link 11?, to actuate a lever 29, pivoted upon the goose-neckand fittedto a notch 15 in the back of the tongue is tapped in the topof the carrier. The stem 9 and sleeve areprovided, respectively, withright and left handthreads,so'that the turning of the sleeve in thecarrier operates to move the shank n longitudinally therein. The sleevehis provided with ahand-wheel 70 by which it can be turned while inoperation, as the Jhand can be held upon the wheel while the die isvibrating .upon the sheet metal. Such means of adjustment during thecrimping operation is of value, as it avoids the use of preparatory andfinishing dies and enables the operator by gradually approximating thedies to workthe sheet metal gradually into the desired form, thecrimping-dies being preferably set at a given distance, while themolding or 'sheet metal is run through from end to end'at the firstoperation. The dies may then be approximated without stopping theirvibratory movement and the sheet metal run through them again,and theop- Ioo the'desired form for the molding is produced.

during the crimping operation, if desired, by applyinga crank to thescrewg and turning the same to move it vertically, and theangularadjustment of the lateral dies m may be also varied in respecttotheir vertical angles in two planes during the crimping operation byoperating the screw to to move the bars 0, or the screw 0 to movethe-guide o The crank-shaft is shown driven by a friction-wheel s, whichis mounted movably upon the shaft in contact with a driving-disk tactuated by fast and loose pulleys t. The

The lower'criniping-die may also be adjusted friction-wheel is driven bya spline 8 upon the crank-shaft, and may be moved while the machine isin operation by a lever b,pivot-ed upon the bed I), with a handle 19extended to the front of the bed, and provided with a pin b fitted to aseries of holes 11* to retain it in any desired position. The pin b maybe fixed in the handle and the lever made to spring sufficiently towithdraw the pin from the holes when desired.

The operation of the machine is as follows: The lateral dies areadjusted in the desired angles to suit the required molding. The lowercrimping-die is then set at the desired distance below the tops of thelateral dies, and the stroke of the vibrating die 7L2 adjusted to suitthe character of the molding by means of the screw u. The holder h isthen adjusted upon the vibrating carrier to make the die It operate inthe desired degree upon the sheet metal, and the metal is introducedbetween the dies, as shown by the dotted line it in Fig. 3, whichrepresents the curve of the finished molding. As stated above, the sheetmetal may be moved back and forth between the crimpi-ngdies, with theadjustment of such dies varied from time to time to gradually completetheir operation in forming the molding, the die 71 being raised orlowered, if required, during the crimping operation, to adjust thecurvature of the molding in the required degree. Vithout shifting thedriving-belt upon the pulleys t the crimping operation may be arrestedby shifting the friction-wheel s to the center of the disk,and as thevelocity of the crank driven by the friction-wheel increases with thedistance of such wheel from the center of the disk the velocity of thecrimping-die may be easily adjusted to suit the resistance of the sheetmetal and the form of the dies by gradually moving the handle b untilthe friction-wheel is properly adjusted.

It will be seen from the above description that the construction permitsthe adjustment of the dies in every desired position to pressthe sheetmet-a1 into the form of a curved molding, and that the action of thedies upon the sheet metal may be fully tested by the operator when firstapplying the sheet metal, and then varied in any required degree whilethe machine is in operation to produce the required results without thenecessity of stopping the machine to change the tools. The quality andquantity of the work produced is thus greatly increased.

Two dotted curves h are shown in Fig. 4,

representing the opposite edges of the sheetmetal when out intosegmental shape to form an arched molding. WVhen crimping such moldings,the lateral dies are set out of line with the center dies, which iseasily effected by sliding the dies forward in their holders t, and thecrimping-dies are preferably clamped in their holders with their rearedges closer together than the two corners, so as to pinch the sheetmetal harder upon the convex side of the curve, and thus stretch it tocompensate for the stock which is taken up in crimp mg.

The difference of opening between the front and rear corners of the diesis somewhat ex aggerated in the drawings but would be readily adjustedto suit the required operation of the dies if the rear corners wereplaced in contact.

Having thus set forth the nature of the invention, what is claimedherein is- 1. In a sheet-metal-molding machine, the combination, withmovable and fixed crimping-dies, of lateral bending-dies connectedtogether and adapted to be moved simultaneously upon opposite sides ofthe crimpingdies, substantially as set forth.

2. In a sheetrmetal-molding machine, the combination, with movable andfixed crimping-dies, of lateral bending-dies provided with movablecarriers, and a connection between said carriers for moving the lateraldies simul taneously, substantially as set forth.

3. In a sheet-metal-molding machine, the combination, with movable andfixed crimping-dies, of lateral bending-dies provided with carrierssupported each upon two pivots and thereby adapted to rock in twodifferent directions, and a connection between said carriers for rockingthem simultaneously, substantially as set forth.

4. In a sheet-metal-molding machine, the combination, with movable andfixedcrimpin g-dies, of lateral bending-dies provided with carrierssupported each upon two pivots and thereby adapted to rock in twodifferent di rections, die-holders adjustable laterally upon the saidcarriers, and a connection between said carriers for rocking themsimultaneously.

5. In a sheetmetal-molding machine, the combination, with movable andfixed crimping-dies, of lateral bendingdies connected together andadapted to be moved simultaneously, and means, substantially asdescribed, for adjusting the crimping-dies toward one another, as andfor the purpose set forth.

6. In a sheet-metal-molding machine, the combination, with movable andfixed crimping-dies, of lateral bending-dies connected together andadapted to be moved simultaneously, means for adjusting the crimpingdiestoward one another to vary the pressure upon the sheet metal, and meansfor verti cally adjusting the stationary crimping-die in relation to thelateral bending-dies to vary the curvature of the sheet metal,substantially as herein set forth.

'7. In a sheet-metalmolding machine, the combination, with movable andfixed crimping-dies, of lateral bending-dies connected together andadapted to be moved simultaneously, and means, substantially asdescribed,

for adjusting the crimping-dies toward one another While in operation.

8. In a sheet-metal-molding machine, the combination, with movable andfixed crimping-dies, of lateral bending-dies connected together andadapted to be moved simultane: ously, a vibrating carrier for themovable crimping-die, and a die-holder fitted adjustably upon saidcarrier and movable thereon while in operation.

9. In a sheet-metal-molding machine, the combination, with movable andfixed crimping-dies, of lateral bending-dies connected together andadapted to be moved simultaneously, a sliding carrier for the movablecrimping-die, a movable die-holder fitted to a socket therein,and ascrew movable with the carrier and adapted to adjust the holder and dieupon the carrier, as and for the purpose set forth. I

10. In a sheet-metal-molding machine, the combination, with movable andfixed crimping-dies, of lateral bending-dies connected together andadapted to be moved simultaneously, a bed supporting the fixed dies andcarrying the driving mechanism, a goose-neck column sustaining a movablecarrier for the movable crimping-die, means for reciprocating thecarrier upon the goose-neck, and a dieholder adjustable upon thecarrier, as and for the purpose setforth.

11. In a sheet-metal-molding machine, the

combination, with movable and fixed crimping-dies, of a frame sustainingthe fixed. die removably, a pivoted bar mounted at each side of thefixed die, and a rocking carrier pivoted upon each bar and therebyadapted to rock longitudinally and transversely to the bar, as and forthe purpose set forth.

12. 'In a sheet-metal-molding machine, the

- combination, With movable and fixed crimping-dies, of a framesustaining the fixed die removably, a pivoted bar mounted at each sideof the fixed die, a rocking carrier pivoted upon each bar,a connectionbetween the carriers to rock them simultaneously, and dieholdersadjustable upon the carriers, substantially as set forth.

13. In a sheet-metal-molding machine, the combination, with movable andfixed crimping-dies, of a frame sustaining the fixed die removably, apivoted bar mounted at each side of the fixed die, a rocking carrierpiv-,

oted upon each bar, a connection between the carriers to rock themsimultaneously, and a connection between the bars to rotate them inopposite directions, as and for the purpose set forth,

1 14:. In a sheet-metal-molding machine, the combination, with movableand fixed crimping-dies, of a frame sustaining the fixed die relnovably,a pivoted bar mounted at each side of the fixed die, a rocking carrierpivoted upon each bar, tail-pieces upon the carriers, an adjustableguide slotted to receive combination, with movable and fixedcrimplug-dies, of a frame sustaining the fixed die removably, a pivotedbar mounted at each 1 side of the fixed die, a rocking carrier pivotedupon each bar, tail-pieces upon the carriers,

an adjustable guide slotted to receive the tail- :pieces, toothedsegmentsfitted to the pivoted bars and connected to rotate them inopposite directions, and means for moving one or both of the segments torock the lateral dies in opposite directions, as and for the purpose setforth.

16. In a sheet-metahmolding machine, the combinatiomwith movable andfixed crimping-dies, of a frame sustaining the fixed die removably, apivoted bar mounted at each side of the fixed die, a rocking carrierpivoted upon each bar, tail-pieces upon the carriers, an adjustableguide slotted to receive the tailpieces, toothed segments fitted to thepivoted bars and connected to rotate them in opposite directions, andmeans for clamping one or both of'the bars when adjusted, as and for thepurpose'set forth. v

17. In a sheet-metal-molding machine, the combination, with fixed andmovable crimpin g-dies, of pivoted carriers arranged at opposite sidesof the fixed crimping-die, and holders for lateral dies fitted to seatsupon said'carriers and movable to and from the crimpingdie and rotaryupon the said seats to set them at an angle With the crimping-die.

18. In a sheet-metal-molding machine, the combination, with fixed andmovable crimping-dies, of pivoted carriers arranged at opposite sides ofthe fixed crimping-die, lateral die-holders provided each With afulcrum-pin upon its under side and a slot in its foot, a groove in eachcarrier transverse to the fixed crimping-die to receive the fulcrum-pin,and

a bolt and nut fitted to the groove and slot and. operated to clamp theholder upon the carrier, as and for the purpose set forth.

19. In a sheet-metaLmolding machine, the combination, With movable andfixed crimping-dies, of lateral bending-dies connected together andadapted to be moved simultaneously, a bed supporting the fixed dies, aro-' Ioo tary driving-disk supported upon said bed,

mechanism for vibrating the movable crimping-die,a friction-Wheel fordriving said mechanism, and a hand-lever for moving said friction-wheelto and from the center of the driving-disk While in operation to varythe speed of the movable die, substantially as herein set forth.

20. In a sheet-metal-molding machine, the combination, with movable andfixed crimping-dies, of lateral bending-dies connected together andadapted to be moved simultaneously, a bed supporting the fixed dies, aroour hands in the presence of two subscribing tary driving-disksupported upon said bed, Witnesses. adjustable mechanism for vibratingthe mov- ANSON O. KITTREDGE. able crimping-die with a variable stroke, aTHOS. S. CRANE. 5 friction-wheel for drivin said mechanism, and ahand-lever for moi-*ing said frictiongfigg i iiggf Wheel to and from thecenter of the driving- GEO KITTREDGE disk while in operation to vary thespeed of the movable die, substantially as herein set \Vitnesses as to'1. S. Crane: 1o forth. L. LEE,

In testimony whereof We have hereunto set HENRY J. MILLER.

